What is an AI datacenter?

An AI datacenter is a facility purpose-built or retrofitted for GPU and accelerator workloads — typically at rack densities above 30 kW, with liquid-cooling readiness and high-bandwidth fabric (InfiniBand NDR, NVLink, or Spectrum-X). At least 40% of IT load runs AI training or inference on GPUs such as NVIDIA H100, H200, B200, or GB200 NVL72.

Which datacenter has the most GPUs?

As of 2026, xAI Colossus in Memphis, Tennessee holds the title of the world's largest single-site GPU deployment, with more than 200,000 NVIDIA H100 and H200 GPUs in one InfiniBand domain. Meta Hyperion (Louisiana) and OpenAI Stargate Abilene (Texas) are scaling toward gigawatt-class deployments that will overtake it within the next 18 months.

What is the largest AI cluster?

xAI Colossus is the largest contiguous AI training cluster in 2026, exceeding 200,000 NVIDIA H100/H200 GPUs on a single InfiniBand NDR 400G fabric. Meta's Hyperion build and OpenAI's Stargate program are constructing multi-site fabrics that will exceed one million accelerators across coupled campuses by 2027.

Which GPU cloud is cheapest for H100?

On-demand: Together AI ($1.75/hr) and Voltage Park ($1.89/hr) lead. Reserved 1-year: Voltage Park ($1.20/hr) and Crusoe ($1.39/hr) are typically lowest. AWS p5 sits at the top of the price stack at ~$4.10/hr on-demand.

How is Datacenter.computer different from a datacenter directory?

Datacenter.computer is an agent-readable intelligence layer, not a directory. It normalizes pricing, capacity, power, fabric, and latency across 240+ facilities and 40+ operators into a single queryable graph for AI agents, traders, and procurement teams.

[DC.COMPUTER] Layer 5 · Colocation

Aruba

Every indexed Aruba datacenter — facility-level capacity, GPU fleet, and country coverage.

Datacenter Portfolio

[AI Summary]

Aruba runs 54 indexed datacenters across 16 countries, totaling 1,029 MW of IT capacity. The portfolio spans colocation tiers and deploys Mixed, H100, L40S, H200, B200, A100, MI300X.

Facilities

1,029 MW

Total IT

Countries

GPU SKUs

[Facilities · 54]

Facility	Operator	Location	GPU	MW	PUE
Aruba IT3 Hyperdc	Aruba	Bergamo, Italy	Mixed	90	1.20
Aruba LONDON1 West	Aruba	London, United Kingdom	—	27	1.53
Aruba LONDON83 Park	Aruba	London, United Kingdom	—	36	1.29
Aruba LONDON105 Park	Aruba	London, United Kingdom	—	4	1.39
Aruba LONDON107 Park	Aruba	London, United Kingdom	—	45	1.33
Aruba LONDON112 East	Aruba	London, United Kingdom	H100	27	1.53
Aruba SLOUGH14 Central	Aruba	Slough, United Kingdom	—	12	1.21
Aruba SLOUGH16 Annex	Aruba	Slough, United Kingdom	—	15	1.20
Aruba SLOUGH20 West	Aruba	Slough, United Kingdom	—	17	1.22
Aruba SLOUGH24 West	Aruba	Slough, United Kingdom	—	7	1.44
Aruba SLOUGH30 West	Aruba	Slough, United Kingdom	L40S	16	1.24
Aruba MANCHESTER8 East	Aruba	Manchester, United Kingdom	—	21	1.32
Aruba FRANKFURT9 Annex	Aruba	Frankfurt, Germany	—	24	1.20
Aruba FRANKFURT24 North	Aruba	Frankfurt, Germany	—	36	1.30
Aruba FRANKFURT74 Park	Aruba	Frankfurt, Germany	—	12	1.46
Aruba FRANKFURT78	Aruba	Frankfurt, Germany	—	38	1.31
Aruba FRANKFURT91 Campus	Aruba	Frankfurt, Germany	—	44	1.34
Aruba FRANKFURT97 North	Aruba	Frankfurt, Germany	—	29	1.25
Aruba AMSTERDAM1 Annex	Aruba	Amsterdam, Netherlands	L40S	13	1.45
Aruba AMSTERDAM5 East	Aruba	Amsterdam, Netherlands	H200	42	1.34
Aruba AMSTERDAM31 West	Aruba	Amsterdam, Netherlands	—	34	1.30
Aruba AMSTERDAM72 Park	Aruba	Amsterdam, Netherlands	—	31	1.40
Aruba AMSTERDAM76	Aruba	Amsterdam, Netherlands	L40S	7	1.40
Aruba PARIS14 Central	Aruba	Paris, France	—	15	1.46
Aruba PARIS31 East	Aruba	Paris, France	L40S	11	1.46
Aruba PARIS35 Central	Aruba	Paris, France	—	13	1.48
Aruba PARIS44 South	Aruba	Paris, France	—	24	1.55
Aruba PARIS78 Central	Aruba	Paris, France	—	4	1.41
Aruba MADRID11 East	Aruba	Madrid, Spain	—	18	1.21
Aruba MADRID13 Annex	Aruba	Madrid, Spain	—	11	1.51
Aruba MADRID22 East	Aruba	Madrid, Spain	—	16	1.55
Aruba MADRID26 Central	Aruba	Madrid, Spain	—	10	1.48
Aruba BARCELONA14 East	Aruba	Barcelona, Spain	—	18	1.30
Aruba GENEVA3 North	Aruba	Geneva, Switzerland	—	10	1.50
Aruba GENEVA7 South	Aruba	Geneva, Switzerland	—	19	1.26
Aruba VIENNA24 East	Aruba	Vienna, Austria	—	20	1.29
Aruba STOCKHOLM3 Campus	Aruba	Stockholm, Sweden	B200	24	1.37
Aruba STOCKHOLM12 East	Aruba	Stockholm, Sweden	—	21	1.33
Aruba STOCKHOLM18	Aruba	Stockholm, Sweden	—	17	1.32
Aruba OSLO10 South	Aruba	Oslo, Norway	—	10	1.53
Aruba HELSINKI4 Park	Aruba	Helsinki, Finland	—	2	1.34
Aruba SOFIA4 Park	Aruba	Sofia, Bulgaria	—	17	1.32
Aruba SOFIA6 East	Aruba	Sofia, Bulgaria	—	20	1.37
Aruba SOFIA8 North	Aruba	Sofia, Bulgaria	—	4	1.44
Aruba SOFIA10	Aruba	Sofia, Bulgaria	—	5	1.43
Aruba ATHENS11 Park	Aruba	Athens, Greece	A100	10	1.49
Aruba LISBON9 Central	Aruba	Lisbon, Portugal	—	19	1.45
Aruba BERLIN6 North	Aruba	Berlin, Germany	MI300X	3	1.38
Aruba DUSSELDORF14 Central	Aruba	Dusseldorf, Germany	H200	3	1.39
Aruba DUSSELDORF18 Central	Aruba	Dusseldorf, Germany	B200	12	1.53
Aruba ROTTERDAM5 Park	Aruba	Rotterdam, Netherlands	—	14	1.26
Aruba ROTTERDAM9 Annex	Aruba	Rotterdam, Netherlands	—	10	1.54
Aruba TALLINN3 Central	Aruba	Tallinn, Estonia	—	15	1.27
Aruba REYKJAVIK7 West	Aruba	Reykjavik, Iceland	—	7	1.23

[FAQ]

How many datacenters does Aruba operate?

54 indexed facilities totaling 1,029 MW across 16 countries.

Which GPUs does Aruba deploy?

Mixed, H100, L40S, H200, B200, A100, MI300X

In which countries does Aruba operate?

Austria, Bulgaria, Estonia, Finland, France, Germany, Greece, Iceland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom

[Knowledge Graph]

Company → Datacenter → GPU → Customer → Industry

Every entity on this site is cross-linked. Follow the graph from operators down to specific facilities, GPU clusters, customers, and sectoral context.